Diamond Pier Footings Revisited

It has already been two years since I first blogged about Diamond Pier® Foundation Systems.  Where does the time go?  In my original post on Diamond Piers back in 2013, I talked about how my neighbors were having a deck constructed with Diamond Piers, and I said I'd try to revisit this topic each year to track the performance of their deck.

I completely forgot about that until I re-read the original post just recently, because I'm probably going to have a deck added onto my own house this year, and I intend to have Diamond Piers used for the footings instead of traditional concrete footings.

In short, Diamond Pier footings are a pin foundation system.  A Diamond Pier is a chunk of concrete with four holes in it, through which long steel pins are driven into the ground.  They're far faster and easier to install than traditional concrete footings, and they're more resistant to frost heave than traditional footings.  The short video clip below shows how they work:

Last winter was a pretty bad year for frost heave.  It got really cold and there was very little snow cover to act like insulation, which caused a lot of decks and porches to heave.  So how'd my neighbor's deck hold up?  Perfectly.

Rear view of deck

Side view of deck

Diamond Pier at patio

Diamond Pier exposed

Surprisingly, there doesn't seem to be a whole lot of decks being built in Minnesota using Diamond Piers.  I don't have any statistics, but just based on my experience, these things haven't even put a dent in the market. My best guess is that people aren't aware of the product, or they assume Diamond Piers are more expensive, but they're not.

According to the guys at All Around, the average installed price for a traditional 18" concrete footing is the same as the installed price for a DP-50, which is the equivalent of an 18" footing.

Diamond Piers are superior in performance and they're far faster and easier to install.  They cost more than a traditional concrete footing, but the installed cost is the same when factoring in the price of labor.  So why aren't more folks using them?  I have to assume they just don't know about them.  Click this link for a list of lumber centers throughout Minnesota that sell Diamond Piers.

Author: Reuben SaltzmanStructure Tech Home Inspections

          

Written By

Reuben is a second-generation home inspector with a passion for his work. He grew up remodeling homes and learning about carpentry since he was old enough to hold a hammer. Reuben grew up thinking he was going to be a school teacher because he enjoyed teaching others so much. In a sense, that’s a lot of what home inspections are about, so Reuben truly does what he loves. Sharlene has worked with Structure Tech since 2000 and Reuben has been contributing to her blog since 2008.

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